8 Outside / 6 5/8 Inside Diameter Chrome Cover Plate with Lock

Cover Plates are constructed of a chrome alloy with a concealed hinge for covering existing floor sleeves. All attachment screws are concealed when cover plate is in closed position, allowing for a completely flat and safe playing surface. Oversized cover plates are 9/16 thick and have a 6 5/8 I.D., with a total diameter of 8 and includes the locking mechanism. 1 Year Warranty.